OptiX PTN 7900-24 PIU/PSU board
installation area
8
Installing Boards and Components
1 Installing Boards
Installing PIU/PSU boards
a
Push the PSU board with proper force
until it is fully seated in the slot.
Installing a PSU board:
Tighten the screws after inserting the PSU
into the slot.
Installing a PIU board:
Tighten the screws after inserting the PIU
into the slot. Recovery the nameplate.
Pull the nameplate. Push the PIU board with
proper force until it is fully seated in the slot.
PIUs/PSUs are inserted differently in the upper and lower portions of a
subrack. When the PIU or PSU is installed in the upper power supply area,
the handle faces downwards. When a PIU or a PSU is installed in a lower
power supply area, the handle faces upwards.
Handle facing downwards
Handle facing upwards
Board
Slot
PIU
Slot31, Slot32, Slot37, Slot38
PSU
Slot33, Slot34, Slot35,
Slot36 (preserved, currently with a filler panel)
PIU/PSU slots
• Wear an ESD wrist strap or ESD gloves during operations.
• The board is designed for easy installation. If you feel a blockage when
inserting a board into a slot, remove the board and check whether it was
inserted correctly or whether it is of the correct type. Do not use force to
insert the board.
M3 captive screw:
5.5
±
10% kgf·cm
M3 captive screw:
5.5
±
10% kgf·cm
DANGER
Before removing a PIU board, disconnect the corresponding PDU circuit
breaker, pull the nameplate, and remove the PIU input cable to prevent
bodily injuries.
PIU installation area
PSU installation area
PSU installation area
PIU installation area
